Sheet-feeding machine for printing-presses



e sneetsnsheet 1.A

(No Model.)

J. C. Sz S. DANZIGER.

SHEET EEEDING MACHINE EOE PRINTING PRESSES. N0.398,7-10.

WIT/VESSES:

A TTOHNEYJ i. www@ ma@ N @JM www@ 6 Sheets-Sheet 2.,

(No Model.)

J. C. 8: S. DANZIGER.

sIIEEfI1 EEEEINE MACHINE EOE PRINTING EEESSES.

ill

INVENTORY,

.pi Q su@ Q Patented Feb 26, 1889.

ATTOHNEY.

6 Sheets-Sheet 3.

(No Model.)

J. C. '8a S. DANZIGER.

SEEET EEEDING- MACHINE EOEEEINTING EEESSES.

ted Feb. 26, 1889 W/T/VESSES:

(No Model.) 6 Sheets-Sheet 4.4

J. G. 85 S. DANZIGER.

SHEET PEEDING MACHINE POR PRINTING PRESSES.

N0. 398,710. I Patented Peb.26,1889.

u L a J J N PETERS. Phow-Limogmpher. wnshmglnn. D c.

(No Model.) 6 Sheets-Sheet `5.

J. C. 8v S. DANZIGER. y SHEET EEEIJINGr MACHINE EOE PRINTING PRESSES. No. 398,710. Patented Feb. 26, 1889.4

D A d s u m w Lad WIT/VESSEL?! /VVENTOHY.

#ma e459? MJ 9W vN PETERS, Plwxa-ullwgmpher, washmgton. D. C.

(No Model.) 6 Sheets-Sheet 6. J. G. 8a S. DANZGEE..

SHEET EEEDING MACHINE EUR PRINTING PRESSES.

No. 398,710. E Patented Feb. 26, 1889.

xmw.

WIT/VESSES:

N PETERS. Pnammnagmpher. washington. D C,

tirarse Parent @teren DANZIGFR AND SAMUEL IMXNZIGER, OF CINtINA'lI, OIIIO.

70N forming part of Letters Patent No. 398,710, dated February 26, 1889.

Application tiled february 20, 1888. Serial No. 264,552. (No model.)

Z'o @JZ when@ it 11m/7J concern.-

Iie it known that we, JACOB (l. DANZIGER and tiMELDANZiGER, both ot' Cincinnati, lin the county ot' llamilton, Stat-e ot' Ohio, have invented certain new and useful Improvcn'ients in Siheet-Feeding1 Machines for Irinting-Prcsses, of which the following is a spceilieation.

his invention relates to a new and improved device for feeding paper to printingnrewen, especially color-printing presses, such a e used tor printing labels, avec.

Vthe object oi our invention is to provide a feeding device that can he attached to and operated i'rom the printingmachine, and which i'eeds the sheets accurately and truly to the printing-nmchine in the most perfect manner.

he invention also consists in the construet-ion and combination ot parts and details, as will be i'ulltv described and set forth hereinafter, and i'inall,vv pointed out in the claims.

In the accompanying.; drawings, Figure l is a longitudinal vertical sectional view ot' our improved paper-teeding machine for printing-prf es, showing the parts in the position they ha l. e at the moment when a sheet is being picked up, parts being broken out and others omitted. Fig. 2 is a side view of a cogwheel mounted ltmsel).Y on its shaft andengaged therewith by a ratchet and pawl, the shatt being .in section. Fig. 3 is a Ivertical transverse section ot" the wheel shown in Fig. 2. FigV land 5 are detail side views of the hinged arms carrying thc sheet-litters, said arms havingdillerent positions. Fig. (i is an end view et' the bar carrying the arm and edge view ot' said arm. Fig. 7 is aside elevation ot' the machine, showing the position oi' the parts when the sheet has been carried forward, parts being broken out. Figs. S and il are detail side ele vations ot' the sheet-retainer in dillerent positions. Fig. fl is a detail horizontal sectional view ot part oli the standard ot the carriage. Fig. lo is an elevation oil' that side oi the mafdline opposite the one sliown in Fig. 7, the partsbeingon the returnstroke, and parts being broken out. Fig. 1.1v is a side and end view of thc device for swinging down the arms czirrying the sheet-litters. Fig. l2 is a vt-nticalV sectional view ot' the wiper for shifting the sheets. Fig. 13 is a side view oi the same, the shaft being in section. Fig. 14 is a cross-sectional view of the guides and face view of the slide carrying the shaft on which the wipers are mounted andan edge view of the cog-wheel on said4 devices for holding the sheet after it has been shifted laterally.- Fig. 2:2 is a detail crosssectional view of the sheet-shifter tor shitting the sheet beyond the edge of the platform to permit` the grippers of the press to grip it. The inclined blocks are also shown. Fig. 23 is a side view of the paper-shifter, the guide being in cross-section.

Similar letters ot reference indicate corresponding parts.

The stack A of sheets U, is placedon thebed or platform A', on which the adj ustable gages a2 are provided in guide-grooves o3". Theplatform B, upon which the sheet is placed after it has been removed from the stack, and on which platform the sheet is shifted forward and laterally to bring it in the proper position, is slightl7 elevated above the platform A.

Two horizontalV rails, C, provided with guidegrooves on their .inner side, are suitably supported bv angular standards l', horizontally over the top ot' the platforms A and B, and between the said rails a cross-head, C2, is mounted to slide. Said cross-head supports the upright inverted-Ushaped standard ("5, provided on the inside with vertical opposite guide-grooves C, in which the jaws C5 can slide vertically, said jaws being secured to or formed on the outer side of a tube, C, mounted to slide vertically in the standard (T3, and pressed downward bva spiral spring, CT, surrounding it, and resting at its upper end against an internal shoulder, C, of; the stand- IOO ard C3 and at its lower end against the jaws C5. A rod, C8, passes vertically through the tube C, and is provided above the top of said tube with a head, C2. A spiral spring, C12, surrounds the rod C8, the upper end of said spring resting against anl internal shoulder, C15, of the tube C15, and the lower end resting on an eye or sleeve, C11, on the lower end of said rod CS. In the said eye C11 a cross-bar, C12, is held, to the downwardly-projecting ends of which the cross-bar C13 is fastened. On said cross-bar C13 two sleeves, C14, are mounted in such a manner that they can be shifted toward or from each other, and when shifted can be locked in place by means of suitable thumb-screws. From each of said sleeves a bar, D, projects Ytoward the front end of the machine-that is, in a horizontal direction toward the printing-press-and on the free end of each of said bars D a downwardly-projecting arm, D', Figs. et, 5, and 6,is pivoted, each arm D h aving a bevel, D2, at its upper rear corner. A spring-strip, D3, is fastened to the top of each bar D atthe free end, and rests on the upper end of the corresponding` pivoted arm, D. To the lower end of each arm D' a dovetailed receptacle, D4, is secured, open at the bottom and adapted to receive a block, D5, coated on the under side with a composition something like that of which inking-rolls for printingpresses are made or with said hiking-roller composition.

On the lower end of the tube O6 a cross-rod, E, is iixed, connected at its end by connecting-rods E with the ends of levers E2, pivoted on angle-lugs EB on the standard C3, the opposite ends of said levers E2 being connected by connecting-rods E4 with the ends of bell-crank levers E5, pivoted to jaws E10 of the crosshead C2. Alatch, E6, is pivoted on the standard C3 and can engage an aperture or recess, El, of one of the jaws C5 of the tube C, the spring E8 acting on said latch and pressing it inward, Fig. W. A bent or angular standard, E2, on one of the guide-rails C serves to trip said latch E15. (See Fig. 7.) A rod, F, projecting horizontally from the rear of the crosshead C2, is firmly secured therein, and is provided at its free end with a head, F', and a short distance from theV cross-head with a fixed collar, F2. Said bar F passes loosely through an aperture in the center piece, F3, of a transverse beam, F4, extending beyond the sides of the machine-frame and connected at its ends by the connecting-rods F5, parts of which are only shown in dotted lines with the working mechanism of the printing-press. The center piece, F2, of the beam is provided with two upwardly-curved arms, F11', which can act on the shorter arms of the angle-levers E5. The center piece, F3, has side arms, FS, extending into the grooves of the rails C.

On one side of the machine-frame a slide, G, is provided, having longitudinal slots G', through which pins G2 pass, projecting from the standards G3, secured to the side edges of the platform B, said slide being connected by the connecting-rod G1 with the crank G5 on the shaft G, carrying the cog-wheel GT, that can engage with the rack G8, formed on the under side of part of the square frame G2, connected with the center piece, F3, of the beam F4, as shown in Fig. l5. The cog-wheel G7 is so mounted on the shaft G1i that it turns the said shaft in one direction only.

On the bottom edge of the slide G a rack, G10, is formed, that engages with a cog-wheel, G11, Figs. 7 and lat, said wheel being mounted on a transverse shaft, G12, journaled in suitable slides, G14, mounted to slide between guide-bars G15, held bythe standards G3. On said shaft G12 two sleeves, H, are held adjustably by setscrews, and each sleeve is provided with a neck, from the lower end of which a square rod, H', projects, that is pressed downward and outward by a spring, H2, in the neck. To the lower end of said rod H' a piece, H3, is hinged, as shown in Fig. 13, a spring, H4, being provided for keeping the rod H and the piece H3 in line. The lower end of said piece H3 is pointed or tapered and shed with rubber to form awi per for shifting the paper.

On the standards G3, on one side of the machine, Fig. 7, two levers, I and I', are pivoted, their lower ends being connected bya rod, I2. Pins I3 and l4 on the slide G serve to act on the upper ends of the rods I and I', respect# ively. The lower end of the lever I is connected by thevconnecting-rod I5 with a crank, J', proj ecting from a rockin g-shaft, J, mounted on the standards J 2 of the platform B. The upper part of said shaft is made hexagonal, as at J3, and on said hexagonal part J3 the iiat end of a spring, J1, rests, that is fastened to the arms J 5 on the standard J2. On the shaft J .two adjustable sleeves, J 11), are mounted, on each of which two transverse arms, J 1, are secured, each having each end bent, as at J l. Each sleeve J10 carries an arm, J8,which,when the arms J i are inclined, as shown in Fig. 9, projects in horizontal direction toward the centerof the machine. Said arms J8 areA to be adjusted the same distance from the longitudinal center plane of the machine as are the arms D', carrying the paper-lifters D5, so that the ends of said arms J 2 can strike against the hinged arms D and swing the same from the position shown in Fig. 4 into the position shown in Fig. 5.

On one of the standards G (shown in FiO. 7) a lever, Kis pivoted, that has its upper end forked, on which forked end the pin K on the end of the slide G can act. The lower end of the lever K is connected by a connecting-rod, K2, with the crank K3 on one end of the shaft K1, mounted on the standards K5 near the end of the platform B, Fig. 7, said shaft K4 carrying two sleeves having downwardly-projecting arms l 11, provided on the ends with cross-pieces K7, having the bevels K9 and stop-lugs Ks at opposite ends. A recess, K11, is formed in the top of the platform B at the edge, and forms a shoulder, K12,

IOO

IIO

against which the lugs KS can strike. cach side of the machine-iframe a lever, L, is pivoted on a standard, l5', and has its upper end forked, and on said forked ends of the levers L the ends of the transverse beam Fl can act. The lower ends of the lever L are connected bythe conneeting-rods L with the horizontally-movable racks L2, engaging with the horizontal cog-wheels lj", Figs. 1S and i9.

The shaft of the cog-wheel L on one side of the machine carries a horizontal cam, L, that acts on a downwardly-projceting pin, L, ou a transverse rod, L, guided in eyes LT on the under side of the platform l. On said rod L" a sleeve, L, is held adjustably by a screw, and 'from the same a pin, L", projects upward through a transverse slot, L1", in the platform li, and on the. upper end of said pin L a rail, LU, is secured, which extends in the longitudinal (ilirection of the machine. On the shaft of the other cog-wheel L a cam, M, is secured, which is provided with an offset, M. The edge of said cam can act on the pin M2, proj eetin g dmvnward fromV the transversely-sliding rod Mi", guided to move transversely to the longitudinal axis of the inachine on the under side of the platform B by the eyes M".

A Ahxed rail, M, provided on the top of the platform, extends in the direction of the length ot' the machine near the right-hand edge of the platform, and iu slots M" of the platform angle-levers N are pivoted, which can pass through notches M. in the rail M5, said anglelevers being pressed down upon the platform by the springs N2. A plate, N", is secured to the upper shanks of the angle-levers N. The lower ends of the angle-levers are connected b v rods N with. a rod, N, which in turn is coi'inected with the rod N2. The racks L2 are connected by a cross-bar, N, A spring, N7, surrounding the rod L", has one end rested against one of the eyes LT for guiding said rod and the other end against a iixed collar, N, of the rod Li and serves to press the pin on the rod L against the edge of the cam L". The springs Nl serve to press the pin M2 against the cam fri. The cog-wheels L3 are not mounted rigidly on their shafts; but said shafts are provided with ratchet-wheels with which pawls O', pivoted on the wheels L, engage, as shown in Figs. 2 and f3. In the same manner the cog-wheel G7 is mounted on its shaft GV.

The transverse rail W is scoured at its ends to standards G* near the middle of themachine, and said shaft. carries two adjustable sleeves, d, each provided with a downwardlyprojecting angular arm, VW, the ends of the horizontal shanks of which can strike against pins W3 on the dovetailed boxes D1, carrying the blocks D, cover-ml with the material for lifting the paper. A forked lever,`l), is pivoted on an arm, P6, of one of the standards at one side of the machine, Fig. lt), and t0 vthe lower end of said forked lever a connectingsrod, l, is .pivoteth the opposite end of On l which is connected with a crank, JN, on that end of the shaft .l opposite the one carrying the crank J. 'lhe shaft li is provided at or near one end with an arm, Q, which is connected by a connectingrod, (2', with a slide, (.22, having a dovetailed piece, (Q3, sliding in a correspondingly-grooved guidespiece, Q", on the platform li. To said slide Q a plate, l, is hinged, that is pressed toward the platform by a spring, l. Said plate R is provided at its under side, a short distance from its hinged end, with a rojection, S. The platform li is provided at its end edge with a projection, S, beveled toward the middle of the machine, and provided at the end `farthest from the middle ofthe machine-that is, adjacent to the edge et the platform-with a recess, C?.

A short distance inward from the edge of the platform 'B a projection, T, is provided, whichis beveled toward the edge of the platform, and is provided at the end nearest the middle of the machine-thatis, farthest from the edge of the platform-with a recess, T2, said proj eetions S and T serving to raise the hinged plate R, and said notches S and 'l2 in said projections S and 'l serve to receive the projection S on the under side of the hinged plate R.'

The operation is as follows: As shown in Fig. l, the sheet-litters arcin contactwiththc 'uppermost sheet d and are about to lift. the

same. The arms F ou the centerpiece, F3, of the beam F4, which beam moves in the direction of the arrow .12, strike against the free arms of the angle-levers F5 and swing the same in. the direction of the arrow it', Fig. l, whereby the erosserod E is raised, and thus the tube C with which said erossuod E is connected, is moved upward, and the spring CT is compressed. rllhe jaws C-l are also moved upward, and the latch E snaps into the recess CT in one of the jaws, thus locking the tube C and the rod C", which has been raised with the same inthe raised position. The crossbars C12 and C1 are raised with the rod C", as are also the bars D, arms D', and the paperlifters on the lower ends of said arms to such elevation that the sheetisz'diove the platform l. The beam FVl continuesl to move in a direction toward the printiiig-press-that is, in a direction of the arrow .1"2, Fig. l--but as yet has not moved the standard C in the same direction, for the reason that the rod F passes loosely through the center piece, F 3, of the beam Ft. This construction is provided for the pu lpose of preventing the standard C3 being moved before the sheet has been raised. The center piece, F3, then strikes against the collar F2, causing the center piece, the bars l), the sheet-litters, and the sheet held bythe saine together to move iu the direction toward the printing-press-thatis, in the direction of the arrow a2-whereby the sheet is carried upon the platform B. lVhen the standard C3 has almost reached the .end of its stroke in the direction of the arrow fr?, the ends of the IOO IIO

beam F4 strike the front prongs, w, of each lever L, which prongs w are in the tracks of the ends of the beam F4, as shown in dotted lines in Fig. '10, and swing the levers L in the .inverse direction of the arrow fc3, Fig. l0, cans# ends of the beam F1 have acted on. the upper ends of the lever L and moved them in the manner described, one end of said beam strikes the prong if on the upper end of the lever P, Fig. 10, and swings the upper end of said lever P in the inverse direction of the arrow x3, whereby the inner ends of the arms Ji are swung down and the outer ends are swung up-that is, those ends nearest the center of our machine are swung down. rFhe bent inner ends, J "l, of the arms J 1, by being swung down, rest on and hold down the sheet that has been carried forward by the sheet-lifters and bars D; but still said bars D continue to move in the direction of the arrow Q02, Fig. l. The result is that the pivoted arms D strike against the arms J S, which, by swinging down the arms J6 in the manner described, are

' brought into horizontal position, as shown in Fi 9, and striking the'pivoted arms D swing the same toward the center of the machine, or inward-that is, in the direction of the arrow Q0, Fig. 10. As the edge of the sheet is held by the inner lowered ends, J1, of the arms J 1i, it is evident that the paper-lifting blocks are drawn off the paper byswinging the arms D in the direction of the arrow x11. The sheet is now entirelydisengaged from the lifters, and is held on the platform 'B by the bent ends J 1 of the arms J'2 in the position shown in Fig. l0. The team F4 is now moved in the direction from the press-that is, in the inverse direction of the arrow :204, Fig. lO-by the rods F5, connecting said beam with the printingpress. A short time after the beam has begun its return-stroke one end of the beam F4 strikes the rear prong, r2, of the lever P, which prong is now in a raised position, and swings the lever P in the direction of the arrow 003, whereby-by means of the connecting-rod P and crank J10, the shaft J'is turned in such a manner as to bring the arms J 1 into the hori- Zontal position, said shaft being held in place by the springs J4. The sheet now lies freely on the platform B. Immediately after one end of the beam F4 has acted upon the upper end of the lever P both ends of the beam F4 act on the rear prongs, wg, of the levers L, which lO and 1S. Thereby the wheels L3 are turned, and as their pawls now engage with the ratchet-wheels on the shafts the cams L4 and M are moved in the directions indicated by their arrows. The result is that the cam L1, by means of the pin L5 and rod L11, moves the rail L11 in the direction of the arrow d', Fig. 19, said rail acting on the side edges of the sheet and pressing the opposite edge of the sheet against the fixed rail M5. At the same time that the paper is being shifted laterally in the manner described the cam M has rotated in the direction of its arrow, thus per'-V .mitting the pin M2 to move to the right, Fig. 1S, and the angle-levers N to swing down until the plate NJ is a short distance above the sheet. Then the offset M arrives at the pin M2, said pin makes a sudden movement to the right, and thereby the plate N is pressed on the right-hand edge of the sheet and holds the sheet firmly at said right-hand edge. If the sheet is rather wide, it may occur that by the action of the rail L11 the sheet is buckled,l and if it were not held at the right-hand edge when he rail L11 recedes it might get out of adj ustment; but this cannot happen when the righthand edge is held. As the cam M continues to revolve its edge acting on the pin M2 moves the same to the left, whereby the angle-levers N and plate N9 are raised and the sheet is rc leased, its right-hand edge resting against the inner side of the rail M5. During these Inovements the sheet-holder has been in the raised .position and the arms D are still inclined.

By the return movement of the beam F4 and standard C14 the bars D and sheet-litters have also been returned in the inverse direction of the arrow 054. As stated, a rack-frame, G9, is provided on the center piece, F13, of the beam F4, and when said beam has almost completed its return-stroke said rack acts on the cog wheel G-6 and turns the same in the direction of the arrow d2, Fig. 7, whereby the slide G is moved in the direction of the arrow d3, Fig. 7. As soon as the slide begins to move in this direction the pin K, acting on the rear raised prong, y', of the lever K., swings the said lever in the direction of the arrow d4,whereby the arms KG on the shaft K4 are swung in the direction of the arrow g, and the lugs K3 on the ends of the plates K1 come in contact with the shoulders K12 of the recess K11. As soon as the rack begins to move in the direction of the arrow d3 the ratchet-wheet G11 is rotated in the direction of the arrow g2, Fig. 7, and the tubular arms H are swung in like direction, causing the wipers H3 to come into the position shown in dotted lines in Fig. 7, and as said wipers pass over the sheet they move it in the direction of the arrow :102, Fig. 7, causing the edge of the sheet nearest the printing-machine to abut against the stop-lugs KS. By the time that the slide G has been moved such a distance as to operate the wipers in the manner described the pin I4 acts on the upper end of the rod I and swings the same in the direc- IOO IOS

IIO

he arms J, or ends nearest the printing is, are swung down upon the paper, w hich hns held in place. "he pin l'L can act on pper end of the lever l, which is in a verbnt the pin l passes over the Y er end of the lever l without aetingupon it, as salu level is in the inclined position shown in L T.' The rack G is of suflicient size to e an entire rotation of the cogvrheel tl in the direction of the arrow (Hand after the wheel G7 has compleled one-half a roathm they t e (l is moved in the inverse direction of d3. Bv this .inverse moveinen"Y of tle wipers ll. are rotated in the inve se diret-tion ol' the arrow q2, but do not eaue the shifting of the sheet to the reartha is, from the press-for the reasheets are held by the ends JT of tion of the arrow l, whereby the front ends (Wc i the athis J, and that the wipers are hinged bend, as shown in dotted lines in t, f1 q il L\.l

further movement of the direction of the arrow the upper end of the lever ame in the direction of the he arms J are brought into and the paper is released. s over the u pper end of the lever 1; on it, for the reason that said el ined posit ion and the said pin l can leaf it. rthe lever l, however, has been bre Y 1 into the vertical position, so that zhe p-.n l can act upon itbythe previous movement of the connected rods l and l, for, as has been stated, during the stroke of the rack tl to the rear, Fig. T, the pin I* acts on the leverl l and inelin es the same, wherebv the lever l is brought into vertical positioii. Finally, the pin Kacling on the front prong, y, ot the lever l, swings the said leverin the in verse direct ion of theA arrow (F, wherebvT the arms l are swun 'n the inverse direction of the arrow gj and raised. The paper now free on the ilati'orm. Bv swinging the arms l" in the inverse directionV of the arrow q the slide Q" is moved in the direction of the arrow olf-that is, in a direction toward the printing-rams, Figs. l0, l5, and 22-and its hinged plate it, sliding down the inclined block T, rests upon the sheet, upon which it is pressed bv the spring it', and feeds said sheet beyond the edge of the platform B, so that it can be gripped b v the grippers of the printing-press. ll'hen the slide Q2 arrives at the edge of the platform, the ifnojection S on the under side ol.' the plate l slides up the inclined projeetimi itl', and is thus lifted clear of the paper. permitting the grippers to draw the paper into the i'nintingonachine. The slide Q2 is returned when. the arms K swing down. Bv this time the rack GS has passed entirelyv over 'he cog-whcel GT. rl`he outer end of the latch E strikes against the arm E, wher-eb;r its inner end is withdrawn from the notch FT in the jaw ("3, wherebv the tube C released and pressed downward by its spring t. wIter-No5v the sheet-litters l.)i are 1i' L. i istitu? The pin l* l, Tfilll lever li i pressed upon the uppermost sheet of the stack. The beam F4 is now moved in the direction of the arrow .12, Fig. l, by the connecting-rods F rlhe rack Gs again acts on the cog-wheel Gf without rotating the shaft G-that is to sav, when the rack Gs passes over the cog-wheel Gl' in the direction from the printing-press said cog-wheel rotates the shaft; but when the rack passes over the cog wheel in the direction toward the printingpress the cog-wheel rotates without rotating the shaft. The arans F of the center piece, F, again strike the ends of the angle-levers E, whereb)v the tube C `is lifted, as is also the new sheet, all in the manner previouslv described. Just before the standard C eempletes its return-stroke the horizontal shanks of the arms Vif strike the pins W on the sides of the blocks D* and swing the arms l Yfrom the inclined position which they have during the return-strolm into the vertical position, so that the pieces D5 can be pressed upon the uppermost sheet.

So that the operation may be made fully understood we will reeapitulate briefly: The arms on the center piece, F, strike against the ends of the angle-levers E, whereby the sheet is raised, and then said raised sheet is carried upon the platform ll. The front part of the sheet is held on the platform by the rear ends of the arl'ns J, which are swung down by the action of one end of the bea-1n F`1 on the lever l), and then the arms D are swung to the rear and the sheet-litters are disengaged from the sheet, which is now held on the platftnm B by the rear ends of the arms J Then by the action of one end of the beam F4 in its return-stroke on the upper end of the level-P said arms J i are swung into the horizontal position and the sheet is free. Then the ends of the beam FL act on the ends of the levers L, whereby the sheet is shifted laterally. '.lhen by the action of the rack la on the cog-wheel Gr7 the arms li are swung down and the wipers move the front edge of the sheet against the stop-lugs KS ou the ends of the arms K". Then b v the action of the pin lAL on the lever l the front ends of the arms J are swung down upon the sheet and hold the same, and the wipers pass back over the sheet, but cannot shift the same. rl`hen the pin l acts on the upper end of the leverl and the arms J" are swung up and the paper is free, its front end resting against the stoplugs K. Then the pin K acts on the upper end of thelever l andthe arms K are swung up, and atthe same time the hinged plate R moves the edge of the sheet bevond the edge of the platform ll. rlhe arms K J JS, the wipers, the arms lli?, rail L, and the bars D are all adjustable on their shafts, according to the width of the sheet. The standard C and the center piece of the beam FVl form a carriage, although they move separately at times. The spring (.l keeps the rod Cs lowered,so that the head C rests on the upper end of the tube (.T. The spring (.7 sfu-ves lo IOO IIO

press the tube C6 downward. When the standard C3 arrives at .the arm E9, the tube C, the rod CS, the arms D,and the paperlifters are in the raised positions, and when the latch Ei is withdrawn the tube CG is released and pressed down by its spring CT. When the stack of paper is very high,the upper end of the rod C8 projects some distance from the upper end of the tube CG. As the height of the stack decreases the sprin g C10 gradually presses said rod C8 down farther. Fig. 17 shows the rod C8 in its lowest position.

Having thus described our invention, we claim as new and desire to secure by Letters Patentl l. In a sheet-feeding machine for printingpresses, the combination, with a frame, of a reciprocating carriage, bars supported by said carriage, arms hinged to said bars, blacks on swinging ends of said arms, and a covering of inking-roller composition on said blocks, substantially as shown and described.

2. In a sheet-feeding machine for printingpresses, the combination, with a frame, of a carriage, bars on said carriage, arms pivoted to said bars, sheet-lifting blocks on the swinging ends of said arms, and springs on the bars resting on the upper ends of said pivoted arms, substantially as shown and described.

3. In a sheet-feeding machine for printingpresses, the combination, with a frame, of a carriage, bars on the same, arms pivoted to the ends of said bars, said arms having the inner corners at the upper ends beveled, sheet-lifting blocks on the swinging ends of said arms, and springs secured on the bars and resting on the upper ends of said arms, substantially 2s shown and described.

it. In a sheet-feeding machine for printingpresses, the combination, with a frame, of a carriage mounted to slide on said frame, a sheet-lifter carried by said carriage, sheetshifters operated by parts of the carriage, and sheet-retainers operated by parts of the carriage, substantially as set forth.

5. In a sheet-feeding machine for printingpresses, the combination, with a frame, of a carriage mountedto slide on said frame, sheetlitters carried by said carriage, a table on which the sheet can be placed, a rail mounted to slide laterally on said table to shift the sheets laterally, sheet-wipers operated by the carriage, and sheet-retainers operated by the carriage,substantially as shown and described.

6. In a sheet-feeding machine for printingpresses, the combination, with a frame, of a carriage mounted to slide on said frame, sheetlifters carried by said carriage, a transverse beam sliding with the carriage on the frame and connected therewith, levers pivoted on the frame and operated by the ends of said beam, a laterally-movable sheet-shifting rail operated by intermediate power-transmitting members from said pivoted levers, paperwipers operated bythe carriage, and paper-retainers operated by the carriage, substantially as shown and described.

7. In a sheet-feeding machine for printingpresses, the combination, with a frame, of a carriage sliding on the same, a transverse beam moving with said carriage and connected therewith, aplatform for receiving the sheets, sheet-lifters carried by the carriage, pivoted levers operated by the ends of said beam, a laterally-movable paper-shitl tin g rail operated by suitable intermediate power-transmitting members from said pivoted levers, sheetlwipers operated by the carriage, sheet-stops operated from the carriage, sheet-retainers operated by the carriage, and a sheet-shifter at the end of the platform, also operated from the carriage,substantially as herein shown and described.

8. In a sheet-feeding machine for printingpresses, the combination, with a frame, of a carriage mounted to slide on the same, bars supported by said carriage, arms pivoted to the ends of said bars, paper-lifting blocks on the ends of said arms, a rockin g shaft mounted on the frame, bars fixed on said shaft and projecting toward the pivoted arms and serving to tilt the same, and fixed arms on the frame in the tracks of the said pivoted arms on their return-stroke for the purpose of swinging the arms back to the normal position, substantially as shown and described.

9. In a sheet-feeding machine for printingpresses, the combination, with a frame, of a carriage mounted to slide on the same, bars supported by said carriage, arms pivoted to the ends of said bars, sheet-lifting' blocks on the ends of said arms, a rocking shaft, sheet-retaining arms on said shaft, a rack on the carriage, a cog-wheel adapted to engage said rack, a slide on the frame, a connectingrod connecting said slide with a crank on the shaft carrying the cog-wheel, pins on the slide, connected levers on which said pins can act, and a rod connecting said levers with an arm on the shaft carrying the sheet-retainin g arms, substantially as shown and described.

IO. In a sheet-fe eding machine for printingpresses, the combination, with a frame, of guide-rails on the same, a carriage mounted to slide on said rails, a platform, a rock-shaft extending across said platform, arms on said rock-shaft, stops on the ends of said arms, a y

slide on the frame, a pin on the slide, a swinging lever on which the pin can act, a rod connecting said swinging lever with the arms of the shaft carrying the arms having the stops, a rack on the carriage, a shaft provided with a crank, a cog-wheel on said shaft, a rod connecting the slide with saidV crank, and sheetretaining arms operated by the slide, substantially as shown and described.

1l. In a sheet-feeding machine for printingpresses, the combination, with a frame, of guide-rails on the same, a carriage mounted to slide on the guide-rails, sheet-litters supported by said carriage, a slide on the frame,

IOO

IIO

paper-retainin g arms, and arms having stops operated by the slide, a rack on the carriage, a cog-wheel adapted to engage saidA rack, a crank-shaft carrying said cog-wheel, and a rod connecting the crank with the slide, substantially as shown and described.

l2. In a slieet-feedingmachine forprintingpresses, the combination, with a frame, of guide-rails on the same, a carriage mounted to slide on the guide-rails, sheet-lifters supported by the carriage, a platforn'i, said platform being provided at its end with a recess forming the shoulder, a rock-shaft having' arms, stop-lugs on said arms, which stop-lugs can swing again st the shoulder formed by the recess, a slide on the frame,levcrs for ope 'ating the swinging stop-lug arms from, the carriage, and mecl'ianism, substantially as herein described, for operating the slide from the carriage, substantiallwvv as shown and described.

lil. In a sheet-feedi ng machine for printingprcsses, the combination, with a Vframe and a platform, of rails on. the frame, a carriage mounted to slide on said rails, a racl: on said carriage, a cog-wheel, a crank-shaft carrying the cog-wlieehthe slide (i on. the frame, aconnecting-rod connecting said slide with the crank-shaft, the pins Itx and I4 on the slide, the connected pivoted levers I and l', the shaft J, having the arms J, the crank J on the shaft J, and the rod I5, connecting the crank of the shaft J with the rods I l, substantiallyv as shown and described.

l-i. ln a sheet-feeding machine fer printingpresses, the combination, with a frame and platform, of lrails on the frame, a standartv mounted to slide on the rails,a sheet-lifter supported by said standard, a transverse beam, l", connected with the sliding standard, the lever l?, the slide (l, mechanisn'i, substantially as herein shown and described, for operating said slide from the standard, the levers I l', the rocking shaft J, the arms J on the same, the rod l5, connecting the crankarm on said shaft .I with the rods I I', and the connecting-rod l, connecting another crank. on said shaft l with the lever I), substantiall v as shown and described.

l5. In a sheet-feeding machineforprintingpresscs, the continuation, with a frame and platform, of rails on the frame, a slidingl standard on said rails, a rockin shaft above the plzirtform, paper-,retaining arms on said rocking shaft, and independent levers on opposite sides of the frame connected with said rock-shaft, substantially as shown and described.

16. In a sheet-feeding machine for printingpres s, the combination, with a frame and platform, of rails on the frame, a sliding standard on the rails, sheet-lifters supported by the standard, a rocking shaft at the end of the platform, arms having stop-ln gs on said shaft, a slide een nected with th e rocking shaft, a hinged plate on said slide, beveled projections on the platform acting on said hingedv plate, paper-retainin arms, and mechanism, substantially as herein shown and described, :for operating the sln'ift carrying the arms having the stop-lugs and the shaft carrying the paper-retaining arms from the sliding standard, substantially as shown and described.

lT. In a sheet-feedingmachine for printingpresses, the combination, with a frame and platform, of a fixed rail on the platform, a longitudinal transversely-movable rail on the platform, guide-rails on the frame, a sliding standard supported bythe guide-rails, a transverse beam supported bv the guide-rails and connected with the sliding standard, leversl pivoted to the side of the frame, on which levers the ends of the transverse beam can act, racks connected with the levers, cog-wheels engaging said racks, cams on the shafts of the cog-wheels, a pin on the movable rail on the platform, on which pin one of the cams acts, angle-levers at the fixed rail, a rod connectin g th c angle-levers, and a pin on said rod, on which pinV the other cam acts, substantially as shown and described.

1S. In a sheet-feedingmachine for printingprcsses, the combination, with a frame and platform, of the guide-rails C, the sliding standard C, the sliding beam 1*, connected therewith, the two levers L, pivoted on the frame and actuated by the ends of the beam lf, the racks L2, connected with the levers L, the cog-wheels L, engaged with the racks L2, thc cains Ll and M', the movable rail L, the rod L, the spring N", the pin L5, the fixed rail lil", the angle-levers N, the rods N and N5, the rod M, the pin lil', and the springs Ng, substantially as herein shown and described.

l0. In a sheet-feeding machine for printingpresses, the combination, with a frame, of rails, a standard mounted to slide on said rails,bars supported by the standard, hinged arms on the ends of the bars, paper-lifters on said arms, a rock-shaft having cams that can abut against the sheet-lifting arms', a shat't, lV, the arms '2 on the same, pins I3 on the paperlifters, and mechanism, substantially as herein shown and dcscrib ed, for opera-ting the rocking shaft from the slidinfr standard, substantiall;`- as shown and described.

20. In a sheet-'feed'ng machine for printingpresses, the combination, with a frame, of rails on the same, a standard mounted to slide on the rails, a sheet-lifter supported by the sliding standard, a rocking shaft, wipers on said rocking-shaft, a cog-wheel on the rocking shaft, a slide on the side of the frame provided with a rack engaged with said cogwheel, and mechanism,substantially as shown and described, for operating the slide from the standard, substantiall),v as shown and described.

2l. In a sheet-feeding machine for printingpresses, the combination, with the frame, of rails on the same, a sliding stamlard on the rails, sheet-lifters suspended from the standard, the slide (l on the frame, which slide is IOO IIO

provided with a rack, G10, the cog-Wheel G11, engaged with The rack G10, the rails G15, the adjustable bearings G11, the shaft G12, mounted in said bars G14 and carrying the wheel G11', the sleeves H, having hollow arms, the pieces II in said arms, the hinged pieces H43 on the pieces Il', and mechanism, substantially as shown and described, for operating the slide G from the sliding standard, substantially as shown and described.

Ina sheet-feedin g machine for printingpresses, the combinatioinwith aframe, of rails, the sliding standard C3 on the rails, the sliding tube C in the standard, the spring C1, pressing the tube downward, the rod C3 in the tube C, the spring pressing the rod CS downward, and sheet-litters supported from said rod C8, substantially as shown and described.

In a sheet-feeding machine for printingprcsses, the combinatiomwith a frame, of rails, the sliding' standard C1g on the rails, the sliding tube C in the standard, having the jaws C5, of which one is provided with a notch, E1, a spring for pressing the tube downward, sheet-litters supported by said rod,'a latch pivoted on the standard for locking the tube C in the raised position, and the arm E9 on one of the rails for tripping` said latch, substantially as set ftrth.

24. In a sheet-feeding machine for printingpresses, the eombination,with a frame, of rails, a sliding standard on the rails, a tube mounted to slide in the standard, sheet-litters supported by said tube, angle-levers pivoted on parts ot' the standard and connected by intermediate levers with the sliding tube, a transverse beam mounted to slide on the rails, a rodY projecting 'from the standard through the transverse beam, and arms on the transverse beam to act on the angle-levers, substantially as shown and described.

25. In a sheet-feedin machine for printingpresses, the combination,with a frame, of rails, a sliding standard on the rails, a 1' ube mounted to slide in the standard, sheet-litters supported by said tube, angle-levers pivoted on parts of the standard and connected by intermediate levers with the sliding tube, a transverse beam mounted to slide on the rails, a rod projecting from the standard through the transverse beam, and armson the transverse beam to acton the angle-levers, a latch for locking the tube in raised position, and an arm on one of the rails for tripping` said latch, substantially as shown and described.

In testimony that we claim the foregoing as our invention we have signed our names in presence of two subscribing witnesses.

.moon c. minstens. SAMUEL DANzienn.

Vvlitness for J. C. Danziger:

OSCAR F. GUNZ,

Witnesses for S. Danziger:

Louis A. DANZIGER, ALFRED M. COHEN. 

